Synthesis of Au@CdS core–shell nanoparticles and their photocatalytic capacity researched by SERS
Source abstract
Abstract
High-quality Au@CdS core–shell nanoparticles (CSNs) have been synthesized to improve photo-conversion efficiency in photocatalysis. They demonstrate higher photocatalytic activity in the experiment of photocatalytic degradation of rhodamine 6G (R6G) solution than that of CdS counterparts. Au@CdS CSNs can broaden the absorption range in visible region compared to CdS counterparts. The heterojunction interface between Au and CdS facilitates the separation of photo-generated electron–hole pairs, and transfers electrons from CdS region to Au core. The two advantages are crucial to improve the photocatalytic activity of Au@CdS CSNs. Charge transfer mechanism between metal and semiconductor is efficient that can be used to guide the design of photocatalysts, photovoltaics, and other optoelectronic devices to effectively utilize the solar power. In this paper, we research the photocatalytic process by surface-enhanced Raman scattering (SERS). The combination of photocatalysis and SERS not only can show the change in concentration of R6G solution, but also can provide the information of the change of R6G molecular structure in photocatalytic process.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Gold and Silver Nanoparticles Synthesis and Applications · Quantum Dots Synthesis And Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (39)
Show source-provided references
1. Green MA (2009) The path to 25 % silicon solar cell efficiency: history of silicon cell evolution. Prog Photovolt 17(3):183–18910.1002/pip.892 ↗
2. Wu NQ, Wang J, Tafen DN, Wang H, Zheng JG, Lewis JP et al (2010) Shape-enhanced photocatalytic activity of single-crystalline anatase TiO2 (101) nanobelts. J Am Chem Soc 132:6679–668510.1021/ja909456f ↗
3. Tafen DN, Wang J, Wu NQ, Lewis JP (2009) Visible light photocatalytic activity in nitrogen-doped TiO2 nanobelts. Appl Phys Lett 94:09310110.1063/1.3093820 ↗
4. Bao NZ, Shen LM, Takata T, Domen K (2008) Self-templated synthesis of nanoporous CdS nanostructures for highly efficient photocatalytic hydrogen production under visible light. Chem Mater 20:110–11710.1021/cm7029344 ↗
5. Fujii H, Inata K, Ohtaki M, Eguchi K, Arai H (2001) Synthesis of TiO2/CdS nanocomposite via TiO2 coating on CdS nanoparticles by compartmentalized hydrolysis of Ti alkoxide. J Mater Sci 36:527–532. doi: 10.1023/A:100485741924210.1023/A:1004857419242 ↗
6. Dong WH, Pan F, Xu LL, Zheng MR, Sow CH et al (2015) Facile synthesis of CdS@TiO2 core–shell nanorods with controllable shell thickness and enhanced photocatalytic activity under visible light irradiation. Appl Surf Sci 349:279–28610.1016/j.apsusc.2015.04.207 ↗
7. Li JF, Anema JR, Yu YC, Yang ZL, Zhou XS et al (2011) Core–shell nanoparticle based SERS from hydrogen adsorbed on a rhodium(111) electrode. Chem Commun 47:2023–202510.1039/c0cc04049e ↗
8. Kamat PV (2007) Meeting the clean energy demand: nanostructure architectures for solar energy conversion. J Phys Chem C 111:2834–286010.1021/jp066952u ↗
9. Lee I, Joo JB, Yin Y, Zaera F (2011) A yolk@shell nanoarchitecture for Au/TiO2 catalysts. Angew Chem Int Ed 50:10208–1021110.1002/anie.201007660 ↗
10. Hirakawa T, Kamat PV (2005) Charge separation and catalytic activity of Ag@TiO2 core–shell composite clusters under UV-irradiation. J Am Chem Soc 127:3928–393410.1021/ja042925a ↗
11. Thakur P, Joshi SS, Kapoor S, Mukherjee T (2009) Fluorescence behavior of cysteine-mediated Ag@CdS nanocolloids. Langmuir 25:6377–638410.1021/la8042507 ↗
12. Kahane SV, Sudarsan V, Mahamuni S (2014) A study of charge transfer mechanism and optical properties of Au–CdS core–shell nanocrystals. J Lumin 147:353–35710.1016/j.jlumin.2013.11.060 ↗
13. Lambright S, Butaeva E, Razgoniaeva N, Hopkins T, Smith B, Perera D et al (2014) Enhanced lifetime of excitons in nonepitaxial Au/CdS core/shell nanocrystals. ACS Nano 8:352–36110.1021/nn404264w ↗
14. Wang YL, Liang S, Li M, Wang JH, Peng XN et al (2015) Tunable plasmon resonance and fluorescence of Au/ZnS/CdS core/shell nanorods. Plasmonics 10:919–92310.1007/s11468-015-9880-y ↗
15. Yang Y, Nogami M, Shi J, Chen H, Ma G, Tang S (2005) Enhancement of third-order optical nonlinearities in 3-dimensional films of dielectric shell capped au composite nanoparticles. J Phys Chem B 109:4865–487110.1021/jp045854a ↗
16. Ma X, Zhao K, Tang H, Chen Y, Lu C, Liu W et al (2014) New insight into the role of gold nanoparticles in Au@CdS core–shell nanostructures for hydrogen evolution. Small 10:4664–467010.1002/smll.201401494 ↗
17. Zhao Q, Ji MW, Qian HM, Dai BS, Weng L, Gui JT et al (2014) Controlling structural symmetry of a hybrid nanostructure and its effect on efficient photocatalytic hydrogen evolution. Adv Mater 26:1387–139210.1002/adma.201304652 ↗
18. Yang TT, Chen WT, Hsu YJ, Wei KH, Lin TY, Lin TV (2010) Interfacial charge carrier dynamics in core–shell Au–CdS nanocrystals. J Phys Chem C 114:11414–1142010.1021/jp103294c ↗
19. Zhang WX, Zheng JZ, Tan CH, Lin X, Hu SR, Chen JH et al (2014) Designed self-assembled hybrid Au@CdS core–shell nanoparticles with negative charge and their application as highly selective biosensors. J Mater Chem B 3:217–22410.1039/C4TB01713G ↗
20. Xiong SL, Xi BJ, Wang CM, Zou GF, Fei LF, Wang WZ et al (2007) Shape-controlled synthesis of 3D and 1D structures of CdS in a binary solution with l-cysteine’s assistance. Chem Eur J 13:3076–308110.1002/chem.200600786 ↗
21. Nie SM, Emory SR (1997) Probing single molecules and single nanoparticles by surface-enhanced Raman scattering. Science 275:1102–110610.1126/science.275.5303.1102 ↗
22. Zhang ZL, Xu P, Yang XZ, Liang WJ, Sun MT (2016) Surface plasmon-driven photocatalysis in ambient, aqueous and high-vacuum monitored by SERS and TERS. J Photochem Photobiol C 27:100–11210.1016/j.jphotochemrev.2016.04.001 ↗
23. Sun MT, Xu HX (2012) A novel application of plasmonics: plasmon-driven surface-catalyzed reactions. Small 8:2777–278610.1002/smll.201200572 ↗
24. Ji XH, Song XN, Li J, Bai YB, Yang WS, Peng XG (2007) Size control of gold nanocrystals in citrate reduction: the third role of citrate. J Am Chem Soc 129:13939–1394810.1021/ja074447k ↗
25. Chen WT, Yang TT, Hsu YJ (2008) Au–CdS core–shell nanocrystals with controllable shell thickness and photoinduced charge separation property. Chem Mater 20:7204–720610.1021/cm802074j ↗
26. Zhang JT, Tang Y, Lee K, Ouyang M (2010) Nonepitaxial growth of hybrid core–shell nanostructures with large lattice mismatches. Science 327:1634–163810.1126/science.1184769 ↗
27. Burford N, Eelman MD, Mahony DE, Morash M (2003) Definitive identification of cysteine and glutathione complexes of bismuth by mass spectrometry: assessing the biochemical fate of bismuth pharmaceutical agents. Chem Commun 1:146–14710.1039/b210570e ↗
28. Chen HJ, Kou XS, Yang Z, Ni WH, Wang JF (2008) Shape- and size-dependent refractive index sensitivity of gold nanoparticles. Langmuir 24:5233–523710.1021/la800305j ↗
29. Oldfield G, Ung T, Mulvaney P (2000) Au@SnO2 core–shell nanocapacitors. Adv Mater 12:1519–152210.1002/1521-4095(200010)12:20<1519::AID-ADMA1519>3.0.CO;2-W ↗
30. Lee JS, Shevchenko EV, Talapin DV (2008) Au–PbS core–shell nanocrystals: plasmonic absorption enhancement and electrical doping via intra-particle charge transfer. J Am Chem Soc 130:9673–967510.1021/ja802890f ↗
31. Wang HH, Sun ZH, Lu QH, Zeng FW, Su DS (2012) One-pot synthesis of (Au nanorod)–(Metal sulfide) core–shell nanostructures with enhanced gas-sensing property. Small 8:1167–117210.1002/smll.201102287 ↗
32. Lei PX, Chen CC, Yang J, Ma WH, Zhao JC, Zang L (2005) Degradation of dye pollutants by immobilized polyoxometalate with H2O2 under visible-light irradiation. Environ Sci Technol 39:8466–847410.1021/es050321g ↗
33. Cushing SK, Li JT, Meng FK, Senty TR, Suri S, Zhi MJ et al (2012) Photocatalytic activity enhanced by plasmonic resonant energy transfer from metal to semiconductor. J Am Chem Soc 134:15033–1504110.1021/ja305603t ↗
34. Zhang ZL, Fang YR, Wang WH, Chen L, Sun MT (2016) Propagating surface plasmon polaritons: towards applications for remote-excitation surface catalytic reactions. Adv Sci 3:150021510.1002/advs.201500215 ↗
35. Cao Q, Yuan KP, Liu QH, Liang CY, Wang X, Cheng YF et al (2015) Porous Au–Ag alloy particles inlaid AgCl membranes as versatile plasmonic catalytic interfaces with simultaneous, in situ SERS monitoring. ACS Appl Mater Interfaces 7:18491–1850010.1021/acsami.5b04769 ↗
36. Fang FF, Li JF, Yang ZL, Li LM, Ren B, Tian ZQ (2008) Optimization of SERS activities of gold nanoparticles and gold-core–palladium-shell nanoparticles by controlling size and shell thickness. J Raman Spectrosc 39:1679–168710.1002/jrs.2066 ↗
37. Majoube M, Henry M (1991) Fourier transform Raman and infrared and surface-enhanced Raman spectra for rhodamine 6G. Spectrochim Acta Part A 47:1459–146610.1016/0584-8539(91)80237-D ↗
38. Vosgröne T, Meixner AJ (2005) Surface- and resonance-enhanced micro-Raman spectroscopy of xanthene dyes: from the ensemble to single molecules. ChemPhysChem 6:154–16310.1002/cphc.200400395 ↗
39. Fang YR, Zhang ZL, Sun MT (2016) High vacuum tip-enhanced Raman spectroscope based on a scanning tunneling microscope. Rev Sci Instrum 87:03310410.1063/1.4943291 ↗